Feds enter hunt for missing California grandpa linked to crypto fortune

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. Fox News Flash top headlines are here. Check out what's clicking on FoxNews.com. The FBI has joined the search for a missing Southern California grandfather as authorities escalate what is now being treated as a kidnapping investigation tied to a troubling web of fraud, impersonation and possible targeting linked to cryptocurrency wealth. Nai Ping Hou, 74, vanished in March 2025 from his Rancho Cucamonga home and was reported missing weeks later on May 4. Federal officials say possible foul play is suspected, noting Hou’s bank accounts were depleted before law enforcement was even notified of his disappearance. Investigators with the San Bernardino County Sheriff’s Department initially described the case as a suspicious disappearance but now say evidence points to a possible abduction. NANCY GUTHRIE'S DISAPPEARANCE DEFIES FBI KIDNAPPING TRENDS INVOLV